Do you want to have fun when you are on the go? If you do, you have got to the right place, here this Portable High Sensibility AM FM Radio R-304 will makes your walking more interesting!This is an excellent portable AM FM radio of all-around use. This portable high sensibility radio will fit easily into your shirt or jacket pocket! Stylish design of this portable AM FM radio takes up a minimum of space on the nightstand, desk or dresser. And built-in high quality speaker, the pocket AM FM radio can provide you high sound quality, you can clearly hear the voice even do not use earphone. Just take this d portable AM FM radio when you travel, then you can pick up your favorite program anywhere!

With high technology, this AM FM radio has a higher sensitivity and stability

With fashion look, this AM FM radio can show your taste

There is a handle for this AM FM radio

This AM FM radio is made of high quality material, durable and it can last for a long time

You can search many programs

Details:

With fashion look, this high sensibility portable AM FM radio can well show your taste

Made of high quality material, the high sensibility radio is durable for long time use

With high technology, this portable AM FM radio has a higher sensitivity and stability, better enjoy FM

Size in Detail:

How Does FM Radio Work?

Sound Waves and Frequency:

All sound energy is in the form of a wave. The frequency of a wave is the measurement of the number of cycles that it undergoes in a given time frame. Hertz is a measurement of frequency that depicts the number of wave cycles per second. FM signals are measured in megahertz so an FM signal of 97.5 relates to 97,500,000 waves/second

Frequency Modulation:

FM actually stands for Frequency Modulation. FM signals use various frequency levels that reproduce the sound of the originating source (i.e. music). You've probably noticed that FM contains all your music channels while AM radio is limited to news and talk programming. This is because frequency modulation allows for the transmission of the greater range of frequencies (high and low sounds) contained within music.

Transmission:

FM radio originates at the broadcast source (radio stations). These stations use large antennas to send out their broadcast signal. Electrical charges are pushed up and down the broadcast antenna at a rate that relates to the carrier frequency. The movement of electrical charges creates an electromagnetic field which sends out

electromagnetic waves. The waves are sent in all directions. Carrier waves are sent out at a frequency that can be detected by your antenna (the radio station number). They carry sound information that includes the different frequencies of the original broadcast

Reception:

The electromagnetic carrier wave travels through the atmosphere until it is picked up by a receiver antenna (i.e. your car radio antenna). At this time the wave causes electrical charges to be pushed up and down your antenna and on into your receiver. The receiver decodes the modulated frequency information and then passes it to the speakers

Processing and Hearing:

The speaker vibrates according to the processed frequencies and pushes air molecules that recreate the original sound waves and pass them to your ears. You hear the music or talk that was sent in the original broadcast. Since electricity works at the speed of light, this process, from broadcast to listener, is instantaneous

Loss of Signal:

You've probably noticed, particularly if you listen to FM radio in the car, that eventually you will lose your signal. The simple reason for this is that the short wavelength of FM radio waves cause them to travel in straight lines. The earth, however, is curved. Therefore, as the earth curves, FM waves continue in a straight line into the atmosphere and are no longer receptible. The short waves are also affected by obstacles like mountains

How to Build an FM Radio?

A radio provides signal transmission via the use of electromagnetic waves. The frequencies a radio uses are lower than those of visible light. A German scientist by the name of Heinrich Hertz was the first to detect and product radio frequencies, in 1888. Radios are still in wide use, even in this internet age.Building a simple FM radio only requires a small amount of time and materials. Although this radio is fully functioning, it isn't very pretty

Solder the ferrite loop to the variable capacitor. Only solder the ferrite wire that is painted black. Make sure you are soldering the ferrite loop to the center lead of the variable capacitor

Solder the unpainted wire of the ferrite loop to the variable capacitor's right lead

Solder the germanium diode to the same right lead of the variable capacitor as the unpainted wire of the ferrite loop. Only connect one end of the germanium diode

Solder one end of the piezoelectric wire to the other (free) end of the germanium diode

Solder the other end of the piezoelectric wire to the variable capacitor's center lead

Take note of the red-painted wire of the ferrite coil. Use an alligator clip to attach it to the antenna wire

Use the remaining alligator clip lead to attach the green-painted wire of the ferrite coil to a good ground. You can use a cold water pipe for the ground

Package Included:

1 x Portable High Sensibility AM FM Radio R-304

If the order has not been shipped; please contact DinoDirect Live Support for order cancellation.You will get your refund within 24 hours.

If the order has already been shipped; you may return the item to us postmarked within 30 calendar days of delivery. Before that, please contact our Live Support to inform that.
In that case we will refund you the payment excluding actual shipping fees already incurred.

If the item is defective, please contact DinoDirect Live Support and send an email to us at cs-center@dinodirect.com attached an image or video file clearly showing the defect of the product. And we will give you a response within 24 hours whether we will resend the item or refund the payment to you for compensation.

For customization, please consider carefully before ordering.Because we do not accept return and replacement.

DinoDirect, the largest online store for cool gadgets and colorful household supplies, would like to provide more rewards to our loyal customers. Wholesale price for all the products has been launched. Other promotions on DinoDirect are not to be combined with it.

It is a good Radio, sounds nice.
<br/>The non-stereo for earphones is my only complain for this product

Was this review helpful?

0

0

Share to:

Robbin Gould

Bought this item on

04-04-2011

It is perfect!

00:00:00 04-04-2011

I love it. It is perfect. The sound comes clear in a lot of stations. It is the best radio for what I need. I needed something mobile to move around the house with or outside the home without having to deal with the stereo. I love it. I cannot say enough about this.

Was this review helpful?

0

0

Share to:

Wayne Lucas

Bought this item on

03-20-2011

For the money - can't be beat

00:00:00 03-20-2011

This is a great radio for the money. I bought one for my emergency kit and couldn't be happier! it's great!
<br/>
<br/>Pros
<br/>-price
<br/>-reception
<br/>-signal strength
<br/>-size
<br/>
<br/>Cons
<br/>-easy to bend antenna
<br/>-the sound is "small" meaning no low range tones, but seriously that's not a big deal

Was this review helpful?

0

0

Share to:

Brett Stewart

Bought this item on

03-08-2011

IT WORKS FINE

00:00:00 03-08-2011

I bought this radio to listen to some games when I'm away from the car or home. It does the job I got to do.

Was this review helpful?

0

0

Share to:

Keegan Barrett

Bought this item on

02-21-2011

Awesome value!

00:00:00 02-21-2011

I purchased two of these portable dynamos based on the rave reviews by others. Well, add me to the list of extremely satisfied customers! For ten bucks, you simply cannot beat the value for this portable radio! I have used this radio for about a month now and have to agree with comments made by the other reviewers.

Was this review helpful?

0

0

Share to:

leann Evans

Bought this item on

01-24-2011

Surprisingly good. Great even

00:00:00 01-24-2011

Some of the bad reviews made me nervous, but there seemed to be many more positive ones, and the price was incredible. Took a chance, and it paid off. Just needed a portable speaker radio to listen to AM talk radio when out, or away from the radio inside. So far it gets great reception. Better reception than the plugged in radio, and outstanding reception outside. This is an incredible deal, considering I paid under $10. No problems with reception or volume control. It'd be a good buy if it were twice as much. I doubt you'll regret getting it.

Was this review helpful?

0

0

Share to:

John Silber

Bought this item on

01-10-2011

Emergency Radio

00:00:00 01-10-2011

Basic, easy to use AM/FM radio. Perfect little emergency radio to keep in an Earthquake kit.... and you can't beat this price.

Was this review helpful?

0

0

Share to:

Brandy Spas

Bought this item on

12-27-2010

great buy

00:00:00 12-27-2010

I bought this radio for backpacking and have not been disapointed. Its small and light weight and the sound quality was excellent. Yeah the volume controls and tuner are a little sensitive but its not hard to get the soundthe level you want like some reviews I have read. If you just want a pocket radio this would be perfect. It also does not have an lcd screen like other radios which really help the battery life. Its simple and I like that.

Was this review helpful?

0

0

Share to:

Payment Method

Return Policy

• If the order has not been shipped; please contact DinoDirect Live Support for order cancellation.You will get your refund within 24 hours.
• If the order has already been shipped; you may return the item to us postmarked within 30 calendar days of delivery. Please contact our Live Support to inform that.
• Please contact Live Chat or click here to learn more return policy.